By Tony Paul

Some eurozone countries no longer want Greece in the bloc, Finance Minister Evangelos Venizelos has said.

He accused the states of playing with fire, as Greece scrambled to finalize an austerity plan demanded by the EU and IMF in return for a huge bailout.

  Greece needs to convince lenders that it will make enough savings, and that its politicians will enact the changes.

 Athens is hoping to get a 130bn-euro (£110bn; $170bn) bailout from the EU and IMF.

The deal also includes a provision to write off a further 100bn euros of debt owed to banks.

Parliament approved a package of austerity measures on Sunday, but eurozone ministers indicated that more detail needed to be given on the cuts.

The ministers also insisted that the major Greek political parties committed to implementing the cuts, regardless of who wins a general election scheduled for April.

Leaders of the two main parties have now signed letters committing them to enacting the changes.

Mr Venizelos said there were very few remaining issues with the austerity package and promised to have them fully clarified before the conference call.

But he also warned that some eurozone countries were playing with fire, saying: There are many in the eurozone who don't want us any more.

Mr Venizelos also said that President Karolos Papoulias had volunteered to give up his salary as an honourable... symbolic gesture. He is reported to earn 280,000 euros a year.

But the austerity plan has been hugely unpopular in Greece.

Anger boiled over during Sunday's vote in parliament, when large groups of protesters clashed with riot police and dozens of buildings were set on fire in Athens.

And eurozone countries appear to be running out of patience with Greece.

Unnamed eurozone officials were quoted as suggesting that Greece's latest assurances still may not be enough, because people no longer trusted the country's politicians.

Greece has failed to deliver on many of the promises it made to secure an earlier bailout deal, EU officials say.

In a press briefing on Wednesday, German Chancellor Angela Merkel's spokesman, Steffen Seibert, denied Germany wanted Greece out of the eurozone.

Amadeu Altafaj, a spokesman for EU economics commissioner Olli Rehn, said eurozone members had stated very clearly that they want Greece to remain a member of the eurozone.

However, a BBC element in Brussels says there is a growing sense among eurozone members that if Greece did leave it would not mean the collapse of the euro.